Tellurian.



LLLLLLLL N (Application flled eeeeeeeeeeeee l.

No. 647,252. Patented Apr. I0, I900. T. H. COSTELLO.

TE L L U R I AN (Application filed Bay 22, 1899.)

3 Sheets-Sheet 2.

(No Modal.)

NITED STATES PATENT OFFICE.

THOMAS Il. COSTELLO, OF CHICAGO, ILLINOIS.

TELLURIAN.

SPECIFICAIION forming part of Letters Patent No. 647,252, dated April 10, 1900.

Application filed May 22, 1899. Seral No. 717,710. (No model.)

T0 au w7wm it may concern:

Be t known that 1, THOMAS H. COSTELLO, residing at Chicago, in the county of 000k and State of Illinois, have invented certain new and nseful Improvements in Tellurians, of Which the following is a specification, reference being had to the accompanyi1ig draw- 1ngs.

My invention relates to tellurians, and has for its object to provide improved means for actuating the terrestrial globe, to provide an improved combination of devices for securing and holding the calendar-zOdiac plate and means for pointing to the appropriate characters thereon as the globe is moved around snob plate, and to improve generally the construction, operation, and arrangements of devices of this character, all of which I accomplish as illustrated in the drawings and hercinafter specifically described. j

In the accompanying drawings, Figure 1 is a top or plan view. Fig. 2 is a central vertical section. Fig. 3 isabottomview, asmall portion of the base beng broken away; and Fig. 4 is an enlarged detail of the lower end of the stud upon which the globesupporting arm is mounted, showing also in section the parts through which snob lower end passes,

In each of the figures the same referencenumerals indicate corresponding parts.

1 indicates a suit-able base, the form shown being of the knd known as aspider.

2 ndicates a gear-wheel secured by pins 3 or in any suitable manner to the upper face of the central portion of the base.

4 indicates,a long arm, the inner end of which rests on the gear 2 and having a hollow projection 5, that passes through the gear 2 and into a socket in the base 1.

6 indicates a calendar-zodiac, which is made of a disk or plate of light sheet inetal and a strengthening-plate 7 cf cast metal secured to it. The disk 6 is centrally located over the inner end of the arm 4 and is provided With' a central opcning, through which passes a pin 8, having a head 9, that engages the disk.

This pin 8 passes down throngh the parts 1, 2, 4, and 5 and is"secured in place by a nut 10 on its lower end. The lower end of the pin in the construction shown is very slightly tapcred, so that Wlien the nut 10 is screwed upsuch pin is held fast, and as the head firmly engages the disk or plate 6 rotation of such disk is prevented, but at the same time the arm 4 is free to be turned as desired.

11 indicates a geawwheel suitably mounted on the under side of the arm and about midway of the length of said arm and meshing With the stationary gear 2. l2'indicates another gear on the under side and near the outer end of said arm 4 and also meshing With the gear 11. It is pivoted on a stud 13, pass ing through the arm 4 and through an upwardly-projecting sleeve 14, formed on orse- -cured to said arm.

15 indicates a semicircnlar support having a central hollow boss 16, that fits over anarrow portion of the sleeve 14, the two parts 14 and 16 being removably locked together in any suitable manner.

17 indicates an ar1n secured in any suitable manner against tnrningon the upper end of the stud 13 and supporting at its coter end the axis 18, suitably inclined, on which is rotatably secured the globe 19.

, 20 indicates the circle cf illumination and has secured to it a twilight circle 21, as usual, the circle 20 being pivotally attached to the upper ends of the support 15, as usual. The stud 13 is prevented from dropping out by the collar 22, formed thereon, that rests against the upperend of the sleeve 14, and it has its lower end suitably squared, as shown in Fig. 4, which squared portion fits into a correspondngly-shaped opening in a plate 23, that is held againstthe under face of the gear 12 by a screw 24, passing through such plate and into a screwthreaded hole in the end of'said stud 13. As shown, this plate 23 is provided With a semicircular slot 25, registering With a screw-threaded hole in the under face of the gear 12, througb which slot and into which hole passes a screw 26. Vhen this screw 26 is loosened, it is evident that the plate 23 can be turned independently of 20 is to be tightened, Which will prevent rotation of snch stnd independently of the gear 12 and necessarily prevent the inclination of the axis 18 from being distnrloed.

On that portion of the pin 8 that is shown as extending above the head 9 is loosely pivoted a pointer 27,-one end of which is forked, as indioated at 28, to embrace the stud 13 on the enter end of the arm 4, snch fork portion, in fact, being in contact with the boss 16, that snrrounds said stnd.

29 indicates a rod snitably secured to the center of the pointer 27 and of course turning with it. Its front is the are of a circle of a proper size to represent the size of the Sun relatively to the globe 19.

30 indicates a sliding pointer intended to represent the snns central ray.

31 indicates a handle on the onter end of the arm 4, by which snch arm can be conveniently tnrned on its pivot-pin 8.

With the parts assembled in proper position, as shown, the arm 4 can be swung on its pivot-pin 8 aronnd the periphery of the disk 6, dnring which operation the gear 11 tnrns aronnd the fixed gear 2, and as it meshes with the gear 12 Wll of course tnrn snch gear 12. Inasmnch as snch gear 12 bas firmly screwed to it the plate 23 and as snch plate fits on a sqnared end et the stnd 1.3, it is evident that snch stnd Wlll be rotated, and thns cause the constant parallelism of. the globes axis to be maintained as snch globe is moved aronnd, the arm 17, that carries the axis of the globe, being fixed to said stnd to move with it, as stated. The support on which the circle 20 is pivoted is, as stated, made fast to the sleeve 14 of the arm 4, and conseqnently has no movement independent of snch arm 4, the resnlt of Which is that as the arm is tnrned the angle of the globes axis with relation to said circle is constantly changed, as is nsnal in globes employing snch circles. As the arm 4 is tnrned the pointer 27 Will of course be turned on its pivot-pin 8 at the same time, inasmnch as snch pointer is made to embrace by its fork 28 the stnd 13, carried by said arm 4. As shown, the disk or plate 6, over which the pointer moves, is provided near its onter edge with twelve divisions, in which appear the names of the months and to which in succession the pointer 27 may be bronght, so that the portion of the earths surface illnminated by the snns rays at any particnlar time may be determined. The months only are shown as appearing on the disk or plate; but it is to be understood that the many othermarkings that are nsnally applied to calendar-zodiacs are to be applied in their proper places to this disk or plate, so that by the tnrning of the arm 4 the pointer 27 Will be bronght over or in line with any desired mark or character on the disk or plate to enable the parts to be bronght into their proper relative positions for the demonstration of any fact which a device of this kind is adapted to.

That which I clai1n as my invention, and

desire to secnre by Letters Patent, is

1. In a tellnrian, the combination of a base, a gear fixed on the base, a swinging arm provided with intermeshing gea1s one of which engages the fixed gear, a vertical pin extending throngh the base, the fixed gear and one end of the swinging arm and having a sqnared portion near its npper end, a calendar-zodiac composed of a horizontal disk or plate arranged above said swinging arm and engaged at its center with the sqnared portion of the said vertical pin, a pointer arranged horizontally over the calendar-zodiac and pivoted at a point above the central portion of the latter, a globe carried by the onter end of the swinging arm, and devices operated by said gears to maintain the parallelism of the axis of the globe, substantially as described.

2. In a tellnrian, the combination of a base, a gear fixed to the base, a vertical pivotpin extending throngh the base and fixed gear and having a squared portion near its npper end, a swinging arm monnted at one end on the pivot-pin and provided with gears, one of which engages said fixed gear, a calendar-zodiac composed of a horizontal disk or plate arranged above the swinging arm and having its cent-cr -fitted npon the sqnared portion of said vertical pivotpin, devices for circnlarly adjnsting the calendar-zodiac and locking it in a fixed position, and a pointer arranged above said calendar-zodiac, pivoted upon the upper end of said vertical pivot-pin above its said sqnared portion and swinging with said arm, snbstantially as described.

3. In a tellnrian, the combination of a base, a calendar-zodiac composed of a horizontal dis]; orplate monnted at its center on the base, devices for circnlarly adj nsting the calendarzodiac and locking it in a fixed position, a rotatable pointer pivoted between its ends at a point above the center of the calendar-zodiac, a swinging arm monnted atone end on the base and arranged below said ealendar-zodiac, a globe monnted at the other end of the swinging arm, and devices carried by and mo ving with said swinging arm to maintain theparallelism of the axis of the globe and to vary the angle of inclination of said globeaxis, substantially as desoribed.

4. In a device of the character described, the combination with a base, of a disk or plate snpported thereby, a movable arm located between the base and the disk or plate, a vertical pin exten ding thro ngh the base, the disk or plate and the movable arm and having a c'y1indrical npper extren1ity and a sqnared portion directly below said extremity, said squared portion engaging the center of said disk or plate, a globe carried by the movable arm, means carried by said arm for maintaim ing the parallelism of the globes axis as snch globe is moved aronnd said disk or plate, mechanism for adjnsting the globes axis to the properinclination, and a pointer arranged over said dis]: or plate, en gaged with said mov- IIO able arm and journaled upon the oylindrieal upper extremity of said vertical pin, substantially as described.

5.' In a device of the charaeter described, the eombination with a base, of a disk orplate supported thereby, a movable arm leated between the base and the disk or plate, a vertical pin extendin g through the base, the movable arm and the disk or plate and havinga cylindrical npper eXtremity and a squared portion direotly beneath the latter, which engages the center of said disk or plate, a globe 'oarried by the movable arm, means carried by said arrn for maintaining the parallelism of the globes axis as sucl1 globe is moved around said disk.or plate, mechanism for adjusting the globes axis to the proper inclination, a pointer arranged above the disk or plate, engaged with said movable arm and journaled upon the oylindrical upper end of the said vertical pin, and a device representin g the sun and attached to and moving with the said pointer, substantially as described.

6. In a deviee of the eharacter described, the combination with a base, of a disk or plate supported thereby, a movable arm pivoted on the base below the disk or plate and having an upwardly-projeoting portion, a globe. carried by the latter, means for maintaining the parallelism of the axis of the globe, and a pointer pivoted over the said disk or plate and having one end forked to embrace the upwardly-projecting portion of said pivoted arm, substantially as described.

7. The combination with a globe, of a Wheel, an axis for the globe, a vertically-arranged stud extending through said wheeland conneoted with said axis, a plate rigidly seeured to the stud and carried by and laterally adjustable upon said wheel to vary the angle of 40 7 has been laterally adjusted upon the wheel to place the globe-axis in the required position, substantially as desoribed.

8. The combination with a globe, and an axis for the globe, of a rotatable wheel, a Verticallyarranged stud extending through said wheel and connected with the globe-axis, a plate movabl'y monnted npon said whee1 and rigidly secured to the shaft to axially turn the latter, and means for holding the plate in different positions upon said wheel, substantially as described.

9. In a devioe of the oharaoter described, the oombination with a base of an arm pivotally' supported thereon, gears carried by said arrn, a stud passing through one of such gears and having its end beyond snob gear squared, a plate fitting over snob squared end of the stud, and means for adjusting suoh plate and seouring it to suohlast-named gear, substantially as and for the purpose specified.

10. In a device of the oharaoter desoribed, the oombination with a base of an arm piv otally supported thereon, a gear carried at the outer end of said arm, rneans for rotating said gear, a stud passin g through the gear and having its end beyond said gear squared, a plate fitting over snob squared end, and having a curved slot in it registering with a hole in the face of the gear, and a screw passing through such slot into said hole, substantially as and for the pnrpose speoified.

THOMAS H. COSTELLO.

Witnesses:

J ULIA M. BRISTOL, ALBERT H. ADAMS. 

